How did the invention of the cotton gin affect the demand for labor to grow and harvest cotton?

Which of the following is not a typical offer made by whites to indians during treaty negotiations? they offered to provide medical care.they offered cash.they offered full citizenship within the united states.they offered to preserve hunting or fishing areas.

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

Which quotation from the declare ration of independence shows the idea of the social contract